Beta. If you're using Secure by Default, you can generate the domain validation challenges ahead of setting hostnames for your property. Ordinarily, you get the challenges when you add hostnames to a property version or add hostnames to a property's hostname bucket. This operation returns the validationCname object that you use to validate the certificate's domain. For each requested property hostname, create a new CNAME record in the DNS configuration and map the object's hostname to the target.
Generate certificate domain validation challenges
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